Well treating fluids and methods
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United States of America Patent
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Jun 6, 2000
Grant Date -
N/A
app pub date -
Feb 12, 1998
filing date -
Feb 12, 1998
priority date (Note) -
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Abstract
The present invention provides a method for reducing the amount of water produced from a subterranean formation as a result of stimulation of the subterranean formation. The method comprises the introduction of a first and second reactive polymer which leak-off into the formation and which are capable of subsequently reacting together to form a reaction product which selectively reduces the permeability of the formation to water flow through the formation. The reactive polymers react in situ to form a reaction product that binds to the formation in such a manner that the flow of water is selectively retarded through the matrix while the flow of oil is substantially unaffected.
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